170bd86aa6
Before: entire ticket data was logged and shown in the activity tab.
After: compare old vs new values before saving; log only fields that
actually changed as { field: { from: '...', to: '...' } } pairs.
- TicketController.php: fetch old ticket before update, compute delta
- api/update_ticket.php: same fix for the API endpoint (currentTicket
already fetched for auth, reuse it for delta comparison)
- TicketView.php: render delta format as "Field: old → new" with color;
truncate long values (description) at 60 chars; keep legacy flat format
as fallback for older log entries
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>